18770027 has 2 divisors, whose sum is σ = 18770028. Its totient is φ = 18770026.

The previous prime is 18770021. The next prime is 18770029. The reversal of 18770027 is 72007781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18770027 - 2¹⁴ = 18753643 is a prime.

Together with 18770029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18769975 and 18770002.

It is not a weakly prime, because it can be changed into another prime (18770021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9385013 + 9385014.

It is an arithmetic number, because the mean of its divisors is an integer number (9385014).

Almost surely, 2^18770027 is an apocalyptic number.

18770027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18770027 is an equidigital number, since it uses as much as digits as its factorization.

18770027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 18770027 is about 4332.4389205158. The cubic root of 18770027 is about 265.7591946981.

The spelling of 18770027 in words is "eighteen million, seven hundred seventy thousand, twenty-seven".